/Engine/Source/Runtime/Engine/Classes/Materials/MaterialInterface.h
Return the textures used to render this material.
virtual void GetUsedTextures ( [TArray](API\Runtime\Core\Containers\TArray)< [UTexture](API\Runtime\Engine\Engine\UTexture) * > & OutTextures, [EMaterialQualityLevel::Type](API\Runtime\Engine\EMaterialQualityLevel__Type) QualityLevel, bool bAllQualityLevels, [ERHIFeatureLevel::Type](API\Runtime\RHI\ERHIFeatureLevel__Type) FeatureLevel, bool bAllFeatureLevels ) const